# s = "李四"
# print(s)

# file = open(file="text.txt", mode="w")
# file.write("张三\n")
# file.close()
# file = open("text.txt", mode="a")
# file.write("今天学习python")
# file.close()

# s = "路飞"
# print(s.encode())
# encode and decode默认位utf-8